CN207852484U - A kind of metallic film filter capacitor monitoring internal temperature - Google Patents
A kind of metallic film filter capacitor monitoring internal temperature Download PDFInfo
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- CN207852484U CN207852484U CN201721741498.2U CN201721741498U CN207852484U CN 207852484 U CN207852484 U CN 207852484U CN 201721741498 U CN201721741498 U CN 201721741498U CN 207852484 U CN207852484 U CN 207852484U
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- fuse
- copper bar
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- temperature
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Abstract
The utility model discloses a kind of metallic film filter capacitors monitoring internal temperature, including shell, fuse, packing material；Further include connection copper coin, stack bus bar and the temperature sensor of setting inside the housing, the quantity of fuse is more than or equal to 2, and each fuse forms a line, and is located at the side of stack bus bar.The stack bus bar includes inside copper bar, outside copper bar and insulating film, and the upper metal spraying face of each fuse is connected by connecting copper coin with the inside copper bar of stack bus bar respectively；Temperature sensor includes core group sensor and copper bar sensor, and core group sensor is arranged between two fuses, and copper bar sensor is arranged in the inner central position of inside copper bar.The utility model is according to the internal structure design of the capacitor position of temperature sensor, the temperature of different location inside real-time monitoring capacitor.
Description
Technical field
The utility model is related to a kind of capacitors, and in particular to a kind of metalized film filter capacitor monitoring internal temperature
Device.
Background technology
When capacitor is used for large-power occasions, capacitor can be generated heat by high current itself, surrounding heating device meeting
Environment temperature is raised, therefore the radiating condition around capacitor is poor.When work, the surface temperature of measured capacitor cannot generation
The actual temperature of table capacitor internal.Since thin-film capacitor temperature tolerance is poor, operating temperature just needs voltage drop volume higher than 85 DEG C
Work only allows when internal hot(test)-spot temperature is higher than 105 DEG C through short-time current, and the excessively high less serious case of internal temperature influences capacitor
Service life, severe one capacitor failure or even catching fire.
For the temperature inside monitoring capacitor, need that temperature sensor is arranged in capacitor internal.
Such as Chinese patent literature CN 202678115U（Application number 201120551695.4）It discloses a kind of with peace
The capacitor of full warning function, including shell and the capacitor body that is contained in shell, the capacitor body includes capacitance
Device sub-prime；The capacitor element includes center sub-prime, wound on the flexibility temperature sensor of center sub-prime peripheral surface, and winding
In the outer sub-prime of flexibility temperature sensor peripheral surface.Center sub-prime and outer sub-prime are formed by metallizing film winding.The document
Described in sub-prime, that is, capacitor body, in order to measure the temperature of capacitor internal, by flexibility temperature sensor be arranged in capacitance
The inside of device fuse；Namely wound capacitor fuse when, by flexibility temperature sensor inside fuse.
In another example Chinese patent literature CN 2053133U（Application number 201620065781.7）Disclosing one kind had
The capacitor of thermally safe protection, including shell, overheat switch, buzzer and core packet, the core packet are fixed inside the shell, core
The center of packet is equipped with through-hole, and temperature sensor is equipped with inside through-hole, and temperature sensor connects protection chip by conducting wire,
Core wraps end and connects negative terminal by lead, and core packet bottom connects positive terminal, positive terminal by lead
It is in series with overheat switch on the lead of son connection, overheat switch both ends are parallel with resistance, alarm lamp and buzzer, mistake
Chip is protected in heat portective switch connection, and reset button is provided on shell upper surface, and reset button connects overheat switch.It should
Temperature sensor is arranged in the center through hole of core packet in patent document.
The set-up mode of above-mentioned temperature sensor is not suitable for the metallic film filter capacitor of built-in laminated busbar.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of metallization membrane filtrations monitoring actual inside temperature
Wave capacitor.
Realize that the technical solution of the utility model aim is a kind of metallic film filter capacitor monitoring internal temperature,
Including shell, fuse, packing material；Further include connection copper coin, stack bus bar and the temperature sensor of setting inside the housing, fills out
Material is filled to be arranged among shell and internal element to ensure insulation.Fuse is wound to obtain by metallized film, the quantity of fuse
More than or equal to 2, each fuse forms a line, and is located at the side of stack bus bar.
The stack bus bar includes inside copper bar, outside copper bar and insulating film, and insulating film is placed on inside copper bar and outside
Between copper bar, the upper metal spraying face of each fuse is connected by connecting copper coin with the inside copper bar of stack bus bar respectively；Temperature sensing
Device includes core group sensor and copper bar sensor, and core group sensor is arranged between two fuses, including the setting of copper bar sensor
The inner central position of side copper bar.
Temperature sensor is fixed on capacitor internal by resin embedding.
Temperature sensor is drawn by conducting wire and connects Special temperature measurement instrument.
The upper metal spraying face of each fuse in the same plane, lower metal spraying face also in the same plane, the axis of each fuse
In the same plane.
The utility model has the effect of positive：The metallic film filter capacitor of the utility model has used built-in laminated
Busbar is not only advantageous to reduce capacitor ESR as caused by metallic resistance, is also beneficial to reduce the inductance of capacitor itself.It examines
Consider the spaced parallel side for being arranged in stack bus bar of each fuse, temperature sensor is set between two fuses of core group；
Simultaneously because the setting of stack bus bar, electric current collects through stack bus bar, in stack bus bar and fuse metal spraying face are close
Temperature sensor is arranged in the middle position of side copper bar.After resin-encapsulated with capacitor is muddy is integrated, temperature sensor passes through conducting wire
Connection Special temperature measurement instrument is drawn, the temperature of real-time monitoring capacitor inside different location, the temperature at any position is just more than the upper limit
It needs to be handled accordingly.
Description of the drawings
Fig. 1 is the internal structure schematic diagram of the utility model capacitor；
Label in above-mentioned attached drawing is as follows：Shell 1, fuse 2, upper metal spraying face 21 connect copper coin 3, stack bus bar 4, inside
Copper bar 41, outside copper bar 42, capacitor lead-out electrode 43, temperature sensor 5, core group sensor 51, copper bar sensor 52, conducting wire
6。
Specific implementation mode
（Embodiment 1）
See Fig. 1, the metallic film filter capacitor for monitoring actual inside temperature of the present embodiment includes shell 1, fuse
2, copper coin 3, stack bus bar 4, temperature sensor 5, insulating film and packing material are connected；Fuse 2, connection copper coin 3, stack bus bar 4,
Temperature sensor 5, insulating film and packing material are arranged inside shell 1, and packing material is arranged among shell 1 and internal element
To ensure insulation.The insulating film is polyimide film, and packing material is Polyurethane.
The quantity of fuse 2 is more than or equal to 2, and the size of each fuse is identical, 6 is provided in the present embodiment, 6 fuse groups
At core group.Fuse 2 is that oval cylindricality is rolled up along its length by double-layer metallization film after length direction is staggered placement
Around oval cylinder is obtained, two end faces of oval cylinder form metal spraying face to obtain fuse by metallising.The metal
It includes thin dielectric film and metal vapor deposition layer to change film, and metal vapor deposition layer is arranged on a side surface of thin dielectric film.Two layers
When metallized film is placed, the face that metal vapor deposition layer is not arranged of one layer of metallized film is overlayed into another layer of metallized film
Metal vapor deposition layer on.
Each fuse forms a line, and is located at the side of stack bus bar 4.Upper metal spraying face 21 in the same plane, lower metal spraying face
Also in the same plane, the axis of each fuse 2 is in the same plane.
The stack bus bar 4 includes inside copper bar 41, outside copper bar 42 and insulating film, and insulating film is placed on inside copper bar 41
Between outside copper bar 42（It is not drawn into figure）, the insulating film that the present embodiment uses is polyimide film.Inside copper bar 41, outside
Capacitor lead-out electrode 43 is respectively set on copper bar 42.Inside copper bar 41 is close to core group, the inner surface and core of inside copper bar 41
The metal spraying face of son is vertical.The upper metal spraying face 21 of each fuse 2 passes through the inside copper bar phase of connection copper coin 3 and stack bus bar 4 respectively
Even, between each fuse 2 it is electrical parallel configuration.
Temperature sensor 5 includes core group sensor 51 and copper bar sensor 52, and core group sensor 51 is arranged the two of core group
Between a fuse, copper bar sensor 52 is arranged in the inner central position of inside copper bar 41.After temperature sensor 5 is had good positioning, electricity
Container resin embedding, is integrally formed after encapsulation with capacitor, i.e., temperature sensor 5 is fixed on by resin embedding in capacitor
Portion.Special temperature measurement instrument, real-time monitoring capacitor inside different location are drawn by conducting wire 6 and connected to temperature sensor 5（In core group
At portion, copper bar）Temperature, when the temperature at any position be more than the upper limit when, handled accordingly.
The metallic film filter capacitor of the utility model has used built-in laminated busbar, is not only advantageous to reduce capacitor
The ESR as caused by metallic resistance is also beneficial to reduce the inductance of capacitor itself.It is arranged in view of each fuse is spaced parallel
Temperature sensor is arranged between two fuses of core group in the side of stack bus bar；Simultaneously because the setting of stack bus bar, electric current
Collect through stack bus bar, temperature sensing is set in the middle position of the inside copper bar close with fuse metal spraying face of stack bus bar
Device.After resin-encapsulated with capacitor is muddy is integrated, temperature sensor passes through conducting wire and draws connection Special temperature measurement instrument, in real time monitoring electricity
The temperature of different location, the temperature at any position just need to be handled accordingly more than the upper limit inside container.
Claims (4)
1. a kind of metallic film filter capacitor monitoring internal temperature, including shell（1）, fuse（2）, packing material；Its
It is characterized in that：It further include the connection copper coin of setting inside the housing（3）, stack bus bar（4）And temperature sensor（5）, fill material
Material is arranged in shell（1）With among internal element with ensure insulation；
Fuse（2）It winds to obtain by metallized film, fuse（2）Quantity be more than or equal to 2, each fuse forms a line, and is located at
Stack bus bar（4）Side；
The stack bus bar（4）Including inside copper bar（41）, outside copper bar（42）And insulating film, insulating film are placed on inside copper bar
（41）With outside copper bar（42）Between, each fuse（2）Upper metal spraying face（21）Respectively by connecting copper coin（3）With stack bus bar
（4）Inside copper bar（41）It is connected；
Temperature sensor（5）Including core group sensor（51）With copper bar sensor（52）, core group sensor（51）It is arranged at two
Fuse（2）Between, copper bar sensor（52）It is arranged in inside copper bar（41）Inner central position.
2. the metallic film filter capacitor according to claim 1 for monitoring internal temperature, it is characterised in that：Temperature passes
Sensor（5）Capacitor internal is fixed on by resin embedding.
3. the metallic film filter capacitor according to claim 1 for monitoring internal temperature, it is characterised in that：
Temperature sensor（5）Pass through conducting wire（6）It draws and connects Special temperature measurement instrument.
4. the metallic film filter capacitor according to claim 1 for monitoring internal temperature, it is characterised in that：Each core
Son（2）Upper metal spraying face（21）In the same plane, lower metal spraying face also in the same plane, each fuse（2）Axis same
In one plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721741498.2U CN207852484U (en) | 2017-12-13 | 2017-12-13 | A kind of metallic film filter capacitor monitoring internal temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721741498.2U CN207852484U (en) | 2017-12-13 | 2017-12-13 | A kind of metallic film filter capacitor monitoring internal temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207852484U true CN207852484U (en) | 2018-09-11 |
Family
ID=63420583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721741498.2U Active CN207852484U (en) | 2017-12-13 | 2017-12-13 | A kind of metallic film filter capacitor monitoring internal temperature |
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| Country | Link |
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| CN (1) | CN207852484U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111180211A (en) * | 2020-01-17 | 2020-05-19 | 深圳市创容新能源有限公司 | Real-time monitoring capacitor internal temperature rise testing device |
| CN111863459A (en) * | 2020-06-28 | 2020-10-30 | 华中科技大学 | Preparation method and application of a chip type miniature filter capacitor |
| CN114597064A (en) * | 2022-03-09 | 2022-06-07 | 深圳市汇北川电子技术有限公司 | Power film capacitor integrating EMC BOOST assembly and direct current supporting function |
| CN115792734A (en) * | 2022-11-17 | 2023-03-14 | 东莞市纬迪实业有限公司 | Vehicle-gauge capacitor for testing and quality detection method thereof |
| CN117524728A (en) * | 2024-01-03 | 2024-02-06 | 深圳市汇北川电子技术有限公司 | High-temperature-stability high-power thin film capacitor and preparation method thereof |
-
2017
- 2017-12-13 CN CN201721741498.2U patent/CN207852484U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111180211A (en) * | 2020-01-17 | 2020-05-19 | 深圳市创容新能源有限公司 | Real-time monitoring capacitor internal temperature rise testing device |
| CN111863459A (en) * | 2020-06-28 | 2020-10-30 | 华中科技大学 | Preparation method and application of a chip type miniature filter capacitor |
| CN114597064A (en) * | 2022-03-09 | 2022-06-07 | 深圳市汇北川电子技术有限公司 | Power film capacitor integrating EMC BOOST assembly and direct current supporting function |
| CN115792734A (en) * | 2022-11-17 | 2023-03-14 | 东莞市纬迪实业有限公司 | Vehicle-gauge capacitor for testing and quality detection method thereof |
| CN117524728A (en) * | 2024-01-03 | 2024-02-06 | 深圳市汇北川电子技术有限公司 | High-temperature-stability high-power thin film capacitor and preparation method thereof |
| CN117524728B (en) * | 2024-01-03 | 2024-03-22 | 深圳市汇北川电子技术有限公司 | High-temperature-stability high-power thin film capacitor and preparation method thereof |
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